// CARROSSEL
$.fn.infiniteCarousel = function (tipo) {

    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }
	  
	return this.each(function () {
		if (tipo==undefined){
			var $wrapper = $('> div', this).css('overflow', 'hidden'),
				$slider = $wrapper.find('> ul'),
				$items = $slider.find('> li'),
				$single = $items.filter(':first'),
				
				singleWidth = $single.outerWidth(), 
				visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
				currentPage = 1,
				pages = Math.ceil($items.length / visible); 
		}
		else{
			var $wrapper = $('> div', this).css('overflow', 'hidden'),
				$slider = $wrapper.find('> ul'),
				$items = $slider.find('> li'),
				$single = $items.filter(':first'),
				
				singleWidth = $single.outerWidth(), 
				visible = 1, // note: doesn't include padding or border
				currentPage = 1,
				pages = $items.length; 
		}

		// 1. Pad so that 'visible' number will always be seen, otherwise create empty items
		if (($items.length % visible) != 0) {
			$slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
			$items = $slider.find('> li');
		}

		// 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
		$items.filter(':first').before($items.slice(- visible).clone().addClass('cloned'));
		$items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
		$items = $slider.find('> li'); // reselect
		
		// 3. Set the left position to the first 'real' item
		$wrapper.scrollLeft(singleWidth * visible);
		
		// 4. paging function
		function gotoPage(page) {
			var dir = page < currentPage ? -1 : 1,
				n = Math.abs(currentPage - page),
				left = singleWidth * dir * visible * n;
			
			$wrapper.filter(':not(:animated)').animate({
				scrollLeft : '+=' + left
			}, 500, function () {
				if (tipo==undefined){
					if (page == 0) {
						$wrapper.scrollLeft(singleWidth * visible * pages);
						page = pages;
					} else if (page > pages) {
						$wrapper.scrollLeft(singleWidth * visible);
						// reset back to start position
						page = 1;
					} 
				}
				else{
					if (page == 0) {
						$wrapper.scrollLeft(singleWidth * (visible) * pages);
						page = pages;
					} else if (page > pages) {
						$wrapper.scrollLeft(singleWidth * visible);
						// reset back to start position
						page = 1;
					} 
				}

				currentPage = page;
			});                
			
			return false;
		}
		
		$wrapper.after('<div class="arrows"><a class="arrow forward">&gt;</a><a class="arrow back">&lt;</a></div>');
		
		// 5. Bind to the forward and back buttons
		$('a.back', this).click(function () {
			return gotoPage(currentPage - 1);                
		});
		
		$('a.forward', this).click(function () {
			return gotoPage(currentPage + 1);
		});
		
		// create a public interface to move to a specific page
		$(this).bind('goto', function (event, page) {
			gotoPage(page);
		});
	});  

};




//CARROSSEL TIPO 2 - DESLOCA 1 ITEM POR VEZ, INDEPENDENTE DA LARGURA E DO NUMERO DE ITENS EXIBIDOS

$.fn.carousel = function(previous, next, options){
	var sliderList = $(this).children()[0];
	
	if (sliderList) {
		var increment = $(sliderList).children().outerWidth("true"),
		elmnts = $(sliderList).children(),
		numElmts = elmnts.length,
		sizeFirstElmnt = increment,
		shownInViewport = Math.round($(this).width() / sizeFirstElmnt),
		firstElementOnViewPort = 1,
		isAnimating = false;
		
		for (i = 0; i < shownInViewport; i++) {
			$(sliderList).css('width',(numElmts+shownInViewport)*increment + increment + "px");
			$(sliderList).append($(elmnts[i]).clone());
		}
		
		$(previous).click(function(event){
			if (!isAnimating) {
				if (firstElementOnViewPort == 1) {
					$(sliderList).css('left', "-" + numElmts * sizeFirstElmnt + "px");
					firstElementOnViewPort = numElmts;
				}
				else {
					firstElementOnViewPort--;
				}
				
				$(sliderList).animate({
					left: "+=" + increment,
					y: 0,
					queue: true
				}, "swing", function(){isAnimating = false;});
				isAnimating = true;
			}
			
		});
		$(next).click(function(event){
			if (!isAnimating) {
				if (firstElementOnViewPort > numElmts) {
					firstElementOnViewPort = 2;
					$(sliderList).css('left', "0px");
				}
				else {
					firstElementOnViewPort++;
				}
				$(sliderList).animate({
					left: "-=" + increment,
					y: 0,
					queue: true
				}, "swing", function(){isAnimating = false;});
				isAnimating = true;
			}
			//setTimeout('proximo()',1000);
		});
	}
};




$(document).ready(function(){
	$('.infiniteCarousel_6').carousel('.back2', '.forward2');  
});